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Encode and decode HTML entities online. Convert special characters like <, >, &, quotes to HTML entities. Free HTML escape/unescape tool
Calculate IP subnets, network ranges, broadcast addresses, CIDR notation. IPv4 subnet mask calculator. Free online IP/CIDR calculator for network admins
Generate SEO meta tags, Open Graph, Twitter Cards with live preview. Optimize website metadata for search engines and social sharing
Encode and decode URLs online. Convert special characters to percent-encoding for safe URLs. Free URL encoder/decoder tool for developers
Capture screenshot of any website by URL. Preview how sites look on different devices. Download screenshots in high quality
Find your public IP address with geolocation, ISP, timezone info. Check IPv4/IPv6 address, hostname, browser details. Free online IP lookup tool